An airline collects data on the number of trips families take in a given year. The following table is the probability distribution for X, the number of trips a family will take in a year. xn 0 1 2 3 4 pn 0.1 0.5 0.2 0.15 0.05 2400 families are in the company’s database as having subscribed to their email list. How many trips can the company expect out of these 2400 families?

21/58.

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54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.